Year Month Day AAO index 2004 JAN 1 0.042 2004 JAN 2 0.372 2004 JAN 3 1.068 2004 JAN 4 1.224 2004 JAN 5 0.832 2004 JAN 6 0.670 2004 JAN 7 0.640 2004 JAN 8 0.428 2004 JAN 9 0.633 2004 JAN 10 1.421 2004 JAN 11 1.660 2004 JAN 12 1.569 2004 JAN 13 1.166 2004 JAN 14 0.793 2004 JAN 15 0.452 2004 JAN 16 0.383 2004 JAN 17 0.432 2004 JAN 18 1.066 2004 JAN 19 1.777 2004 JAN 20 1.780 2004 JAN 21 1.661 2004 JAN 22 1.190 2004 JAN 23 0.909 2004 JAN 24 0.666 2004 JAN 25 0.595 2004 JAN 26 0.703 2004 JAN 27 0.489 2004 JAN 28 0.216 2004 JAN 29 0.034 2004 JAN 30 -0.244 2004 JAN 31 -0.582 2004 FEB 1 -0.677 2004 FEB 2 -0.548 2004 FEB 3 -0.541 2004 FEB 4 -0.658 2004 FEB 5 -1.029 2004 FEB 6 -1.093 2004 FEB 7 -0.818 2004 FEB 8 -0.329 2004 FEB 9 -0.040 2004 FEB 10 0.138 2004 FEB 11 -0.165 2004 FEB 12 -0.742 2004 FEB 13 -1.460 2004 FEB 14 -1.520 2004 FEB 15 -1.292 2004 FEB 16 -1.070 2004 FEB 17 -1.068 2004 FEB 18 -1.546 2004 FEB 19 -1.648 2004 FEB 20 -1.889 2004 FEB 21 -2.301 2004 FEB 22 -2.146 2004 FEB 23 -2.085 2004 FEB 24 -2.075 2004 FEB 25 -1.724 2004 FEB 26 -1.477 2004 FEB 27 -1.384 2004 FEB 28 -1.210 2004 FEB 29 -0.720 2004 MAR 1 -0.718 2004 MAR 2 -0.578 2004 MAR 3 0.726 2004 MAR 4 1.550 2004 MAR 5 1.709 2004 MAR 6 1.501 2004 MAR 7 1.665 2004 MAR 8 2.066 2004 MAR 9 2.546 2004 MAR 10 2.744 2004 MAR 11 2.742 2004 MAR 12 2.747 2004 MAR 13 2.173 2004 MAR 14 1.493 2004 MAR 15 1.314 2004 MAR 16 1.046 2004 MAR 17 0.379 2004 MAR 18 0.119 2004 MAR 19 -0.597 2004 MAR 20 -0.938 2004 MAR 21 -1.105 2004 MAR 22 -1.471 2004 MAR 23 -1.656 2004 MAR 24 -1.573 2004 MAR 25 -1.827 2004 MAR 26 -2.217 2004 MAR 27 -2.472 2004 MAR 28 -1.474 2004 MAR 29 0.202 2004 MAR 30 1.160 2004 MAR 31 1.568 2004 APR 1 1.388 2004 APR 2 0.636 2004 APR 3 -0.037 2004 APR 4 -0.156 2004 APR 5 0.352 2004 APR 6 0.950 2004 APR 7 1.164 2004 APR 8 0.804 2004 APR 9 -0.393 2004 APR 10 -1.280 2004 APR 11 -0.709 2004 APR 12 0.148 2004 APR 13 0.705 2004 APR 14 0.903 2004 APR 15 0.874 2004 APR 16 0.591 2004 APR 17 -0.250 2004 APR 18 -1.139 2004 APR 19 -1.745 2004 APR 20 -1.888 2004 APR 21 -1.799 2004 APR 22 -0.859 2004 APR 23 0.684 2004 APR 24 1.721 2004 APR 25 1.278 2004 APR 26 0.675 2004 APR 27 0.678 2004 APR 28 0.727 2004 APR 29 0.225 2004 APR 30 0.047